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Cellular Respiration Chapter 9.

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Presentation on theme: "Cellular Respiration Chapter 9."— Presentation transcript:

1 Cellular Respiration Chapter 9

2 Cellular Respiration (Opposite of Photosynthesis)
Overall equation: C6H12O6 + 6O2  6CO2 + 6H2O + energy (glucose + oxygen) (carbon dioxide + water) Releases energy by breaking down glucose Occurs in all cells in all living things (Plants go through cellular respiration at night) In the presence of oxygen, cellular respiration produces a total of 36 ATP molecules per glucose.

3 2 Types of Cellular Respiration
1. Aerobic respiration – does require oxygen Occurs in the mitochondria Produces more ATP (34) 2. Anaerobic respiration- does NOT require oxygen -Occurs in the cytoplasm -Produces less ATP (2)

4 Three Stages of Cellular Respiration
Glycolysis (takes place in the cytoplasm) 2. Krebs Cycle (takes place in the mitochondria) 3. Electron Transport Chain

5 Cellular Respiration

6 Glycolysis 1st stage Takes place in the cytoplasm Has a total of 2 ATP
(Produces 4 ATP but uses 2 ATP) Anaerobic respiration (no oxygen)

7 Krebs Cycle (AKA: Citric Acid Cycle)
2nd stage Takes place in mitochondria Produces 2 ATP Aerobic Respiration (requires oxygen)

8 Electron Transport Chain
3rd stage Takes place in the mitochondria Produces 32 ATP Aerobic Respiration (requires oxygen)

9 Electron Transport Chain
Cellular Respiration Occurs in cytoplasm Occurs in mitochondria Carbon dioxide + Water 36 ATP Krebs Cycle 2 ATP Electron Transport Chain 32 ATP Glycolysis 2 ATP Glucose + Oxygen = anaerobic aerobic

10 Anaerobic Respiration
Fermentation: releases ENERGY from FOOD by producing ATP in the ABSENCE of OXYGEN Breaks down GLUCOSE (SUGAR) Does NOT require oxygen 1. Alcoholic fermentation Occurs in yeast cells Produces 2 ATP, carbon dioxide and alcohol Carbon dioxide causes bread to rise 2. Lactic Acid fermentation Occurs in muscle cells Produces 2 ATP, carbon dioxide and lactic acid Lactic acid causes muscle soreness

11 1. Alcoholic fermentation

12 2. Lactic Acid fermentation

13 Cellular Respiration Review/Close
aerobic muscle anaerobic Lactic Acid fermentation mitochondria 36 Alcoholic fermentation cellular respiration 1.________ is the process that releases energy by breaking down molecules in food. *Cellular Respiration 2.When food is broken down in the presence of oxygen it is called _________. *Aerobic 3. Aerobic respiration takes place in the ___________. *Mitochondria 4. Overall, a total of ____ ATP molecules are produced during aerobic respiration. *36 5. __________ respiration takes place in the absence of oxygen. *Anaerobic 6. Two types of anaerobic respiration are __________, which takes place in yeast cells and _________ which takes place in muscle cells. *Alcoholic fermentation *Lactic Acid fermentation

14 Comparing Photosynthesis and Cellular Respiration
Function Stores Energy Energy release Location Chloroplast Mitochondria Reactants Carbon dioxide and water Glucose and oxygen Products Equation 6CO2+6H2O+light  6O2+C6H12O6 6O2+C6H12O6  6CO2+6H2O+energy

15 Plants (producers) Animals (all organisms)

16 What is the purpose of photosynthesis
What is the purpose of photosynthesis? What is the purpose of cellular respiration? Where does photosynthesis occur? Cellular respiration? Describe what would happen if the amount of sunlight available to a plant became limited. How would that affect cellular respiration? What are the reactants in each of these equations? What are the products?

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